Installation Manual

(--9 to 13_C) or None

d Default = None

S Defrost with Furnace, Electric Heat or Hydronic: Yes o r No

d Default = Yes

d For Geothermal units, lockout for auxiliary heat (furnace or electric resis-

tance) is not enabled.

NOTE: When simultaneous heating and cooling demand feature is ON, the system

will try to respect the settings for heat source but may override the settings if the

preferred heat source is unable to deliver heat.

6.3.6. Stages / Latch for 18VS

For 18VS heat pumps, the cooling and heatin g stage/latch can be changed. Select

cooling or heating next to stages/latch. The maximum stage and the minimum stage

can be selected. The minimum selected stage can be locked-- in or set based upon

the outside temperature.

A14228A

6.3.7. Geother mal HP

First touch SETUP, then touch Geo HP to set up the parameters for th e Geo HP

unit.